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Other than price, what is the difference between regular, midgrade, and premium gasoline?

April 26, 2017difference gasoline Premium price regular

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Other than price, what is the difference between regular, midgrade, and premium gasoline?

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Gasolines are rated based on octane. In most areas of the country our regular gasoline is 87 octane, midgrade is 89 and premium is 91 – 93. If you check your owner’s manual, you’ll find the recommended level for your engine.